作者:Oyejobi, Aanuoluwapo O.、Huang, Jie、Luo, Yun-Xuan、Tang, Xiang-Ying、Wang, Long
DOI:10.1021/acs.joc.4c00833
日期:——
The incorporation of oxygen atoms from air under aerobic conditions plays an important role in organic synthesis. Herein, Brønsted acids are found to be a two-in-one strategic catalyst to transform enamines from β-oxoamides and amines to pyrrolin-4-ones without an external photocatalyst under visible-light conditions. The Brønsted acid can inhibit the C–C bond fragmentation of the [2 + 2] adduct from
在有氧条件下从空气中引入氧原子在有机合成中起着重要作用。在此,布朗斯台德酸被发现是一种二合一的战略催化剂,在可见光条件下无需外部光催化剂即可将烯胺从β-氧代酰胺和胺转化为吡咯啉-4-酮。布朗斯台德酸可以抑制烯胺和1 O 2生成的[2 + 2]加合物的 C-C 键断裂,但最重要的是,它可以通过酸变色作用与烯胺和吡咯啉-4-酮产物形成光敏剂,促进1 O 2代。